Storage

storage

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Storage by Mind Map: Storage

1. STORAGE = physical material on which a computer keeps data, information, programs, and applications

1.1. storage capacity determined by: *number of platters *composition of the magnetic coating on the platters *Density

2. storage device= hardware that records and/or retrieves items to and from storage media

3. memory card = removable flash memory storage device that you insert and remove from a slot in a computer, mobile device, or card reader/writer

4. USB flash drives plug into a USB port on a computer or mobile device

5. SSD (solid state drive) is a flash memory storage device that contains its own processor to manage its storage

6. Cloud storage is an Internet service that provides storage to computer or mobile device users

7. Network attached storage (NAS)

7.1. server that is placed on a network with the sole purpose of providing storage to users, computers, and devices attached to the network

8. optical disk

8.1. consists of a flat, round, portable disc made of metal, plastic, and lacquer that is written and read by a laser

9. Access time measures: -amount of time taken by storage device to locate an item. -The time required to deliver an item from memory to the processor

10. storage capacity determined by: *number of platters *composition of the magnetic coating on the platters *Density

11. Characteristics of a hard disk: ~Tracks ~Sectors ~Platters ~Form factor ~Read/write head ~Revolutions per minute

12. hard disk drive (HDD) contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information

12.1. enterprise storage

12.1.1. allows large organizations to manage and store data and information using devices intended for heavy use, maximum efficiency, and maximum availability

13. HARD DISK

14. SOLID STATE DRIVE

15. ADVANTAGES

15.1. Faster access times Faster transfer rates Quieter operation More durable Lighter weight Less power consumption Less heat generation Longer life Defragmentation not required

16. An external hard drive is a separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device

17. Portable Flash Memory Storage

18. storage area network (SAN)

18.1. a high-speed network with the sole purpose of providing storage to other attached servers

19. OTHER TYPES OF STORAGE

19.1. magnetic stripe card= has magnetic stripe that contains information

19.2. RFID tag= consists of an antenna and a memory chip that contains the information to be transmitted via radio waves RFID reader- reads the radio signal and transfers the information to a computer or computing device

19.3. smart card= stores data on an integrated circuit embedded in the card